Create Load Window in Web Application

Question

Hi,


I have a URL that runs some server-side code and spits out some html code. I want to have an HTML page, where I click on "refresh" and the server-side code URL is loaded, and then printed inside a window in the HTML page (or updates some etc without having to reload the tab/page in the browser. While it is loading the URL, I would like an animation of a "loading" icon to appear just like in a flash app in the middle of the frame where the text is supposed to appear.


Thanks

Answer 1

Do you mean you want to convert the JPEG image to PNG while loading the JPEG image (and not after)?

Are you selecting and loading the JPEG image using the OpenFileDialog Class?

If yes, you can get the name of the JPEG file, pass it Image.FromFile method:
https://msdn.microsoft.com/en-us/library/system.drawing.image.fromfile.aspx
And then save it to PNG using the
Image.Save method (Stream, ImageFormat):
https://msdn.microsoft.com/en-us/library/ms142147.aspx

But if you face any problem while loading or saving the JPEG or PNG images, you can try using loading and saving features from leadtools programming toolkit.

Answer 2

Hi,

Please refer below URLs

http://stackoverflow.com/questions/17294737/converting-an-image-to-png-on-upload


http://stackoverflow.com/questions/3906260/how-can-i-convert-a-jpeg-image-to-a-png-one-with-transparent-background


http://www.c-sharpcorner.com/UploadFile/scottlysle/ImageConverter09132006105604AM/ImageConverter.aspx

Thanks